Tungsten halogen lamp with coiled getter

Details Tungsten halogen lamp with coiled getter Tungsten halogen lamp with coiled getter

1981-09-29

1983-11-15

Smith, Alfred E.

Electric lamp and discharge devices

With getter

Mounted on electrode support

313579, H01K 154

Patent

active

044158335

ABSTRACT:
A single-ended tungsten halogen lamp having a tubular hardglass evenelope containing an inert gas and a halogen, preferably bromine. An improved halogen regenerative cycle in this type of lamp is achieved by minimizing the bromine and impurity attack on the tungsten filament, thus increasing lamp life over a wider application temperature range, through the use of a tantalum or zirconium getter which is in the form of a coil. This coil is particularly useful in small volume lamps, and in a preferred embodiment, is attached to the filament mounting structure (bridge) on the side thereof opposite the main filament body.

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patent: 4096405 (1978-06-01), Goto
patent: 4174488 (1979-11-01), Weterings

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